[ECOS] kernel image size - smallest linux kernel

Karthik Bala Guru tkarthikbalaguru@yahoo.co.in
Mon Dec 16 10:32:00 GMT 2002


Oh yuh,
I was into reducing linux kernel to around 256 kb ...
it was a futile attempt some 3 months back... !!
But i suppose that it will be acheivable with a
vast band of assembly programmers with tonnes of
time in hand !!!

yes, compiling older kernels on the newer ones
was never a success story in my experience !!

Try out asmutils ... It will give u enough idea.
It is much similar to tomsrtbt but gives 
clear idea to reduce linux kernel size !!

The smallest linux kernel in world is that of 
coventive technologies according to many newsgroups.

The smallest size achieved by me with MINIRTL ...
a tiny RTLINUX is that of around 450KB with many
supports removed !!

Let me know if u ever found a kernel size less 
than 300kb. Letz make a list of it .... not very 
faaaar !!!

karthik bala guru
tkarthikbalaguru@yahoo.co.in
linladn@yahoo.co.in





 --- Tyson D Sawyer <tyson@irobot.com> wrote: > I'm
not sure that uC-Linux can't get that small. 
> You loose some 
> features bu it might be worth checking.
> 
> http://www.uclinux.org/
> 
> I don't know the details or how current this info is
> but from the "What 
> is page":
> 
> * Common Linux API
> * uCkernel < 512 kb
> * uCkernel + tools < 900 kb
> 
> I don't know what is included in that 512K or if it
> is a compress image 
> or not.  However, I've heard its smaller.  ...slim
> chance but worth 
> looking into.
> 
> Ty
> 
> Ronald G. Minnich wrote:
> > On Thu, 7 Nov 2002, John Allen wrote:
> > 
> > 
> >>I need to get the kernel that I am building for my
> Geode sc1200 
> >>(including the linuxbios code) small enough to fit
> on a 256K eeprom.  Is 
> >>this possible?  My first attempt resulted in
> vmlinux of  626K.  After 
> >>compiling linuxBIOS it gave my a rominage of 
> 448K.  Am I missing 
> >>something?  I tried to strip as much out of the
> kernel as possible.  
> >>John
> >>
> > 
> > 
> > 
> > you are SOL. Linux has not been that small for
> years. You could try to 
> > compile an older kernel, but we have had zero luck
> with 256KB.
> > 
> > 
> > oh yeah, don't compile older kernels on newer
> linux. I've tried that and 
> > it fails. re-install red hat 1.0
> > 
> > 
> > ron
> > 
> > _______________________________________________

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